what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
1 Improper use of contact lenses or steroid eyedrops can lead to fungal infections, which in turn can cause corneal ulcers. Also, a corneal injury that results in plant material getting into the eye can lead to fungal keratitis.  Acanthamoeba are microscopic, single-celled amoeba that can cause human infection.
Other causes of duodenal ulcer include agents that can cause inflammation of the stomach or duodenal lining, including alcohol, tobacco, or medications such as nonsteroidal anti-inflammatory drugs (NSAIDs). Severe illness and radiation therapy have also been associated with duodenal ulcer.